Home Improvements (3)

Moreover, many language features are sent through a new optimization pipeline in V8. This pipeline uses V8’s Ignition interpreter as a baseline and optimizes frequently executed methods with V8’s more powerful TurboFan optimizing compiler The new pipeline activates for new language features (e.g. many of the new features from the ES2015 and ES2016 specifications) or whenever Crankshaft ( V8’s classic” optimizing compiler ) cannot optimize a method (e.g. try-catch, with).

Most inliners, including GCC one, are able to predict simple optimizations (such as unreachable constant removal caused by constant propagation across function arguments) but they can’t predict more complex patterns where, for example, all calls of methods on a particular instance are must be inlined to make the actual instance to be completely optimized out.

Building the whole Firefox with -O3 leads to code segments of 8.2MB (GCC 4.9), 7.7MB (GCC 5), and, 8.3MB (clang 3.7). GCC sees more similarity between both builds than clang, probably because most of inlining with clang happens at compile time while GCC inlines at compile time only for size and -O3 inlining happens at link-time.

Now, if the main tank runs out, I can close it’s shut-off valve, plug the hose into the quick-release fitting, open it’s valve and attach a one pound disposable propane bottle onto the other end which also has a regulator because the disposable bottles release propane at a higher pressure than the hose, and the Westy appliances are comfortable with.